diagramming the water cycle to explain changes that occur in the atmosphere during different weather conditions, or (Grades 4 - 5) [2002]

explaining the absorption, reflection and transfer of the Sun's energy over land, water surfaces and features. (Grades 6 - 8) [2002]

6. Collect and analyze water from a variety of sources (tap, rain, river). (Grades 6 - 8) [2002]

diagramming the nitrogen, water, oxygen, and carbon cycles with reference to ecosystem-to-molecular levels. (Grades 6 - 8) [2002]

modeling the water, carbon, and nitrogen cycles with local references, or (Grades 6 - 8) [2002]